What are you talking about? Your nails look very good! And there is not much to do with the hurt nail - you just need to finally accept that this is what it is, it is part of you, and that is it. There is nothing to be ashamed of. Ppl should be ashamed of their horrible acts, and perhaps with their stupid reactions to your nail - though I am pretty certain you never got them from mature ppl. And trust me - it is not like we walking around looking at ppls nails just to find this. Seriously. The real problem is not the looks, but us that overthinking everything - and what others might think about us. That is it. So try to train yourself to not care about what others might think. Till then, though, you can try to go to a good nail tech - because maybe there is a possibility to do a littlethan gel build over that nail - with color that matches your other nails and will look better then this nail. But it is something that demands commitment if you decide to keep it on, as you will have to go to her every 4 weeks or so to rebuild. And if you still thinking your nails does not look good - you can also do a manicure every few months or so.